EP 3327339 A1 20180530 - LIGHT GUIDE ILLUMINATION DEVICE FOR DIRECT-INDIRECT ILLUMINATION

Title (en)

LIGHT GUIDE ILLUMINATION DEVICE FOR DIRECT-INDIRECT ILLUMINATION

Title (de)

LICHTLEITERBELEUCHTUNGSVORRICHTUNG ZUR DIREKTEN-INDIREKTEN BELEUCHTUNG

Title (fr)

DISPOSITIF D'ÉCLAIRAGE À GUIDE DE LUMIÈRE POUR ÉCLAIRAGE DIRECT-INDIRECT

Publication

EP 3327339 A1 20180530 (EN)

Application

EP 17179353 A 20140917

Priority

US 201361878764 P 20130917
EP 14778013 A 20140917
US 2014056141 W 20140917

Abstract (en)

An illumination device includes light-emitting elements (LEEs); a light guide extending in a forward direction from a first end to a second end, the light guide being positioned to receive at the first end light emitted by the LEEs and to guide the received light to the second end; and an optical extractor coupled to the second end to receive the guided light. The optical extractor is formed from a transparent, solid material and includes a first output surface including a transmissive portion arranged and shaped to transmit a first portion of the guided light to the ambient in a forward angular range and a reflective portion arranged and shaped to reflect via TIR all the guided light incident on the reflective portion; and a second output surface arranged to transmit, to the ambient in a backward angular range, light reflected by the reflective portion of the first output surface.

IPC 8 full level

F21V 7/00 (2006.01); F21V 8/00 (2006.01); G02B 6/00 (2006.01); F21Y 103/10 (2016.01); F21Y 115/10 (2016.01)

CPC (source: EP US)

F21K 9/61 (2016.07 - EP US); F21S 8/026 (2013.01 - US); F21S 8/04 (2013.01 - EP); F21V 7/0016 (2013.01 - EP US); F21V 7/0091 (2013.01 - EP US); G02B 6/0023 (2013.01 - US); G02B 6/0031 (2013.01 - US); G02B 6/0035 (2013.01 - US); G02B 6/0045 (2013.01 - EP US); G02B 6/0046 (2013.01 - US); G02B 6/005 (2013.01 - US); G02B 6/0055 (2013.01 - EP US); G02B 6/0085 (2013.01 - US); G02B 6/0096 (2013.01 - US); G02B 19/00 (2013.01 - US); F21Y 2101/00 (2013.01 - EP US); F21Y 2103/10 (2016.07 - EP US); F21Y 2115/10 (2016.07 - EP US)

Citation (search report)

[A] US 2013201715 A1 20130808 - DAU WILSON [CA], et al
[A] US 2004208019 A1 20041021 - KOIZUMI HIROYA [JP], et al

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2015042174 A1 20150326; CN 105723150 A 20160629; CN 105723150 B 20190222; CN 105765291 A 20160713; CN 105765291 B 20190906; CN 105793646 A 20160720; CN 105793646 B 20181221; CN 110043874 A 20190723; CN 110286437 A 20190927; CN 110553165 A 20191210; EP 2875280 A1 20150527; EP 2875280 B1 20161116; EP 2875280 B8 20170118; EP 3063466 A1 20160907; EP 3063466 B1 20220105; EP 3063471 A1 20160907; EP 3063471 B1 20170705; EP 3179154 A1 20170614; EP 3179154 B1 20181114; EP 3327339 A1 20180530; EP 3327339 B1 20200408; EP 3546820 A1 20191002; US 10094969 B2 20181009; US 10146002 B2 20181204; US 10203446 B2 20190212; US 10495807 B2 20191203; US 10705284 B2 20200707; US 10725229 B2 20200728; US 11150400 B2 20211019; US 11693174 B2 20230704; US 2015301260 A1 20151022; US 2016025300 A1 20160128; US 2016033109 A1 20160204; US 2016230956 A1 20160811; US 2016282543 A1 20160929; US 2017052305 A1 20170223; US 2017357048 A1 20171214; US 2018106952 A1 20180419; US 2019018182 A1 20190117; US 2019129087 A1 20190502; US 2019317268 A1 20191017; US 2021173138 A1 20210610; US 2022283356 A1 20220908; US 9354377 B2 20160531; US 9557030 B2 20170131; US 9664839 B2 20170530; US 9891371 B2 20180213; US 9983345 B2 20180529; WO 2015042179 A1 20150326; WO 2015042183 A1 20150326; WO 2015042186 A1 20150326; WO 2015042188 A1 20150326

DOCDB simple family (application)

US 2014056132 W 20140917; CN 201480061500 A 20140917; CN 201480062567 A 20140917; CN 201480062568 A 20140917; CN 201811415923 A 20140917; CN 201910049598 A 20140917; CN 201910720588 A 20140917; EP 14778011 A 20140917; EP 14778013 A 20140917; EP 14778014 A 20140917; EP 16198316 A 20140917; EP 17179353 A 20140917; EP 18205903 A 20140917; US 2014056141 W 20140917; US 2014056146 W 20140917; US 2014056157 W 20140917; US 2014056160 W 20140917; US 201414418887 A 20140917; US 201414422851 A 20140917; US 201414422872 A 20140917; US 201415022552 A 20140917; US 201415022902 A 20140917; US 201615166148 A 20160526; US 201715415722 A 20170125; US 201715605875 A 20170525; US 201815894713 A 20180212; US 201815990535 A 20180525; US 201816154587 A 20181008; US 202016940081 A 20200727; US 202117501961 A 20211014